Asked by Aaminah
The kettle in Keith’s kitchen is 80% full. After 20% of the water in it has been poured out, there are 1152ml of water left.
What volume of water does Keith’s kitchen kettle hold when it is full?
What volume of water does Keith’s kitchen kettle hold when it is full?
Answers
Answered by
Potato
When the kettle is full, it holds 1800ml of water.
Answered by
Bosnian
80% = 80 / 100 = 0.8
20% = 20 / 100 = 0.2
When 20% of water is poured out of it, 0.8 • 0.2 = 0.16 volume will be poured.
New volume of water will be:
0.8 V - 0.16 V = 0.64 V
Or:
100% - 20% = 80%
New volume of water will be
80% of 80% volume = 0.8 • 0.8 V =
= 0.64 V
This means:
0.64 V = 1152
V = 1152 / 0.64 = 1800 mL
20% = 20 / 100 = 0.2
When 20% of water is poured out of it, 0.8 • 0.2 = 0.16 volume will be poured.
New volume of water will be:
0.8 V - 0.16 V = 0.64 V
Or:
100% - 20% = 80%
New volume of water will be
80% of 80% volume = 0.8 • 0.8 V =
= 0.64 V
This means:
0.64 V = 1152
V = 1152 / 0.64 = 1800 mL
Answered by
mathhelper
volume of kettle ---- x ml
amount of water in kettle at start = .8x
after 20% of that was removed, amount left = (.8)(.8x) = .64x
.64x = 1152
x = 1152/.64 = 1800 ml
amount of water in kettle at start = .8x
after 20% of that was removed, amount left = (.8)(.8x) = .64x
.64x = 1152
x = 1152/.64 = 1800 ml
There are no AI answers yet. The ability to request AI answers is coming soon!